| Acronym | Meaning |
 | EMR | Electronic Mail Registration |
| JHU | Johns Hopkins University |
| RMC | RAF Management Council |
| WSI | WSI Corporation |
| NESC | National Environmental Satellite Center |
| AGI | American Geological Institute |
| STSP | Solar Terrestrial Science Programme |
| ACRIM II | Active Cavity Radiometer Irradiance Monitor |
| FIRE | First ISLSCP Regional Experiment |
| ARGUS | ARGonne Unified Safeguards |
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